A senior North Korean official said Pyongyang isn’t interested in a summit with the U.S. focused solely on denuclearization and accused Washington of trying to “impose on our dignified state the destiny of Libya or Iraq.”

​In a Wednesday statement attributed to Kim Kye Gwan, a senior foreign ministry official, North Korea said it doesn’t want to deal away its nuclear weapons for economic compensation or benefits. That cast doubt on the North’s willingness to proceed with a planned June 12 summit with President Donald Trump...